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Unable to download STM32F303 cha in addition to the error, code

Time:09-23

Start is normal, then prompt "cha in addition to the error", thought the chip to write bad,
Later to do board, use a new CPU, the results of the same question!

But the question is: now read device and cleaning device and the operation result is normal, just write movie cha process error, and that

Excuse me expert what reason,

CodePudding user response:

To unlock?

CodePudding user response:

You had read the options above words, you reference manual to see if the lock piece, if the lock to unlock,

CodePudding user response:

Thank you, I saw a lot of posts, also feel is a lock plate,

CodePudding user response:

Unlocked!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

CodePudding user response:

@ after dawn said good night:
Ask: how to unlock, I connect with SWD shows no equipment, plate?
I now only ST - LINKV2.

CodePudding user response:

On the same program again STM32F303 development board download is normal, is not his own board,
The new CPU can download only once, the second cannot be downloaded,
To do a board also is same,
Finally write CPU down alone, also shows unable to connect, there have been four CPU film,

CodePudding user response:

Solved: change the software, use USART1 serial download is normal, SWD cannot download, can be used by the simulation of oral and